package com.leeon.string;

import static net.mindview.util.Print.print;

public class Immutable {
	
	
	public static String upcase(String s){
		return s.toUpperCase();
	}

	public static void main(String[] args){
		String q = "howdy";
		print(q.hashCode());
		String qq = upcase(q);
		print(qq.hashCode());
		print(q.hashCode());
	}
	
}
